Horizen (ZEN), formerly, ZenCash, aims to be a private, distributed, & reliable platform for communication, transactions, and publishing. ZenCash launched on 23 May 2017 as a fork of Zclassic without any premining or Initial Coin Offering (ICO). Horizen uses a secure node system to relay data via connecting nodes. The core protocol is reportedly capable of delivering secure messages using the ZenChat service. Horizen uses domain fronting to conceal the endpoint of a communication. A commercial content distribution (CDN) network named ZenPub uses the Hypertext Transfer Protocol Secure (HTTPS) protocol to offer a secure standard web architecture for publishing documents securely. Another service named ZenHide helps mask network traffic data so that users facing regulatory or other filtering hurdles can connect to the ZenChat network without too much trouble.